A total of 64 entire male pigs (average±SD, 32.1±2.70
kg) were included in this experiment. The pigs were housed
in pens of 8 pigs at the Massey University Pig Biology Unit
and fed ad libitum with water available at all times. The
pens were randomly allocated to one of four treatment
groups (fine, medium, coarse or mixed diet) with two pens
of 8 pigs per treatment. The grower diet was fed for five
weeks to a liveweight (LW) of 61.1±5.6 kg, followed by the
finisher diet to an average slaughter weight of 87.2±5.7 kg.
The pigs were slaughtered at a commercial abattoir, and
individual carcass weight and P2 backfat thickness were
recorded.